Electronic Device, Method, and Non-Transitory Storage Medium for Wireless Charging

This application is based on and claims priority under 35 U.S. C. § 119(a) of a Korean patent application number 10-2024-0138897, filed on Oct. 11, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.

The disclosure relates to an electronic device, a method, and a non-transitory storage medium for wireless charging.

With digital technology advancing, electronic devices come in various types, such as smartphones, tablet personal computers (PCs), or personal digital assistants (PDAs). Electronic devices have been developed to be worn by users so as to enhance portability and user accessibility.

Electronic devices are providing more diversified services and additional functions. Steady development efforts are underway for electronic devices to meet various needs of users and to raise the usability of electronic devices.

As technology advances, wireless charging technology using wireless power transmission/reception is being developed, and wireless charging technology may automatically charge a battery, e.g., by simply placing an electronic device on a charging device without connecting it to a separate charging connector.

The above information is presented as background information only to assist with an understanding of the disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure.

In electronic devices utilizing wireless charging technology, as the area of the hinge member including a metal material increases or as the hinge member is positioned closer to the coil, a foreign object detection (FOD) operation may be more often performed and, due to induction heating by the hinge member, more heat generation may occur. However, due to the limited product design, the coil may inevitably be positioned close to the hinge member. Although the electronic device enters a power hold mode (PHM), heat may be generated by induction heating due to a ping signal with a short cycle (e.g., 170 ms).

Aspects of the disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the disclosure is to provide an electronic device, a method, and a non-transitory storage medium for wireless charging.

Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments.

In accordance with an aspect of the disclosure, an electronic device is provided. The electronic device includes a first housing, a second housing rotatably connected to a portion of the first housing to be opened or closed, a hinge member rotatably connecting the first housing and the second housing and including a metal material, a coil disposed adjacent to the hinge member in the first housing, a battery disposed in the first housing, memory, comprising one or more storage media, storing instructions, and at least one processor communicatively coupled to the battery and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receive power for wirelessly charging the battery through the coil from the wireless power transmission device, identify entry into a power hold mode (PHM) while receiving the power based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identify that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintain a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, wherein the second current value of the second ping signal is greater or equal to a reference value, and wherein the second ping cycle is longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

In accordance with another aspect of the disclosure, a method for an operation in an electronic device is provided. The method includes, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receiving power for wirelessly charging a battery of the electronic device through a coil of the electronic device from the wireless power transmission device, wherein the coil is configured to be disposed in a first housing, adjacent to a hinge member including a metal material rotatably connecting the first housing of the electronic device and a second housing of the electronic device, identifying entry into a power hold mode (PHM) while receiving the power, based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identifying that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintaining a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, wherein the second current value of the second ping signal is greater or equal to a reference value, and wherein the second ping cycle is longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

In accordance with another aspect of the disclosure, one or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed by at least one processor of an electronic device, cause the electronic device to perform operations are provided. The operations include, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receiving power for wirelessly charging a battery of the electronic device through a coil of the electronic device from the wireless power transmission device, wherein the coil is configured to be disposed in a first housing, adjacent to a hinge member including a metal material rotatably connecting the first housing of the electronic device and a second housing of the electronic device, identifying entry into a power hold mode (PHM) while receiving the power, and based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identifying that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintaining a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, wherein the second current value of the second ping signal is a reference value or more, and wherein the second ping cycle is longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the disclosure.

Throughout the drawings, like reference numerals will be understood to refer to like parts, components, and structures.

The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the disclosure is provided for illustration purpose only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface”includes reference to one or more of such surfaces.

As used herein, the term “user” may denote a human or another device (e.g., an artificial intelligent electronic device) using the electronic device.

It should be appreciated that the blocks in each flowchart and combinations of the flowcharts may be performed by one or more computer programs which include instructions. The entirety of the one or more computer programs may be stored in a single memory device or the one or more computer programs may be divided with different portions stored in different multiple memory devices.

Any of the functions or operations described herein can be processed by one processor or a combination of processors. The one processor or the combination of processors is circuitry performing processing and includes circuitry like an application processor (AP, e.g. a central processing unit (CPU)), a communication processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a wireless fidelity (Wi-Fi) chip, a Bluetooth® chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on chip (SoC), an IC, or the like.

1 FIG. 101 100 is a block diagram illustrating an electronic devicein a network environmentaccording to an embodiment of the disclosure.

1 FIG. 101 100 102 198 104 108 199 101 104 108 101 120 130 150 155 160 170 176 177 178 179 180 188 189 190 196 197 178 101 101 176 180 197 160 Referring to, the electronic devicein the network environmentmay communicate with at least one of an electronic devicevia a first network(e.g., a short-range wireless communication network), or an electronic deviceor a servervia a second network(e.g., a long-range wireless communication network). According to an embodiment, the electronic devicemay communicate with the electronic devicevia the server. According to an embodiment, the electronic devicemay include a processor, memory, an input module, a sound output module, a display module, an audio module, a sensor module, an interface, a connecting terminal, a haptic module, a camera module, a power management module, a battery, a communication module, a subscriber identification module (SIM), or an antenna module. In an embodiment, at least one (e.g., the connecting terminal) of the components may be omitted from the electronic device, or one or more other components may be added in the electronic device. According to an embodiment, some (e.g., the sensor module, the camera module, or the antenna module) of the components may be integrated into a single component (e.g., the display module).

120 140 101 120 120 176 190 132 132 134 120 121 123 121 101 121 123 123 121 123 121 The processormay execute, for example, software (e.g., a program) to control at least one other component (e.g., a hardware or software component) of the electronic devicecoupled with the processor, and may perform various data processing or computation. According to an embodiment, as at least part of the data processing or computation, the processormay store a command or data received from another component (e.g., the sensor moduleor the communication module) in volatile memory, process the command or the data stored in the volatile memory, and store resulting data in non-volatile memory. According to an embodiment, the processormay include a main processor(e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor(e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor. For example, when the electronic deviceincludes the main processorand the auxiliary processor, the auxiliary processormay be configured to use lower power than the main processoror to be specified for a designated function. The auxiliary processormay be implemented as separate from, or as part of the main processor.

123 160 176 190 101 121 121 121 121 123 180 190 123 123 101 108 The auxiliary processormay control at least some of functions or states related to at least one component (e.g., the display module, the sensor module, or the communication module) among the components of the electronic device, instead of the main processorwhile the main processoris in an inactive (e.g., sleep) state, or together with the main processorwhile the main processoris in an active state (e.g., executing an application). According to an embodiment, the auxiliary processor(e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera moduleor the communication module) functionally related to the auxiliary processor. According to an embodiment, the auxiliary processor(e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. The artificial intelligence model may be generated via machine learning. Such learning may be performed, e.g., by the electronic devicewhere the artificial intelligence is performed or via a separate server (e.g., the server). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure.

130 120 176 101 140 130 132 134 The memorymay store various data used by at least one component (e.g., the processoror the sensor module) of the electronic device. The various data may include, for example, software (e.g., the program) and input data or output data for a command related thereto. The memorymay include the volatile memoryor the non-volatile memory.

140 130 142 144 146 The programmay be stored in the memoryas software, and may include, for example, an operating system (OS), middleware, or an application.

150 120 101 101 150 The input modulemay receive a command or data to be used by other component (e.g., the processor) of the electronic device, from the outside (e.g., a user) of the electronic device. The input modulemay include, for example, a microphone, a mouse, a keyboard, keys (e.g., buttons), or a digital pen (e.g., a stylus pen).

155 101 155 The sound output modulemay output sound signals to the outside of the electronic device. The sound output modulemay include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker.

160 101 160 160 The display modulemay visually provide information to the outside (e.g., a user) of the electronic device. The displaymay include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the displaymay include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

170 170 150 155 102 101 The audio modulemay convert a sound into an electrical signal and vice versa. According to an embodiment, the audio modulemay obtain the sound via the input module, or output the sound via the sound output moduleor a headphone of an external electronic device (e.g., an electronic device) directly (e.g., wiredly) or wirelessly coupled with the electronic device.

176 101 101 176 The sensor modulemay detect an operational state (e.g., power or temperature) of the electronic deviceor an environmental state (e.g., a state of a user) external to the electronic device, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor modulemay include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an accelerometer, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

177 101 102 177 The interfacemay support one or more specified protocols to be used for the electronic deviceto be coupled with the external electronic device (e.g., the electronic device) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interfacemay include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

178 101 102 178 A connecting terminalmay include a connector via which the electronic devicemay be physically connected with the external electronic device (e.g., the electronic device). According to an embodiment, the connecting terminalmay include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

179 179 The haptic modulemay convert an electrical signal into a mechanical stimulus (e.g., a vibration or motion) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic modulemay include, for example, a motor, a piezoelectric element, or an electric stimulator.

180 180 The camera modulemay capture a still image or moving images. According to an embodiment, the camera modulemay include one or more lenses, image sensors, image signal processors, or flashes.

188 101 188 The power management modulemay manage power supplied to the electronic device. According to an embodiment, the power management modulemay be implemented as at least part of, for example, a power management integrated circuit (PMIC).

189 101 189 The batterymay supply power to at least one component of the electronic device. According to an embodiment, the batterymay include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell.

190 101 102 104 108 190 120 190 192 194 104 198 199 192 101 198 199 196 The communication modulemay support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic deviceand the external electronic device (e.g., the electronic device, the electronic device, or the server) and performing communication via the established communication channel. The communication modulemay include one or more communication processors that are operable independently from the processor(e.g., the application processor (AP)) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication modulemay include a wireless communication module(e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module(e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic devicevia a first network(e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or a second network(e.g., a long-range communication network, such as a legacy cellular network, a fifth generation (5G) network, a next-generation communication network, the Internet, or a computer network (e.g., local area network (LAN) or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication modulemay identify or authenticate the electronic devicein a communication network, such as the first networkor the second network, using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module.

192 192 192 192 101 104 199 192 The wireless communication modulemay support a 5G network, after a fourth generation (4G) network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication modulemay support a high-frequency band (e.g., the millimeter wave (mmWave) band) to achieve, e.g., a high data transmission rate. The wireless communication modulemay support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication modulemay support various requirements specified in the electronic device, an external electronic device (e.g., the electronic device), or a network system (e.g., the second network). According to an embodiment, the wireless communication modulemay support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC.

197 197 197 198 199 190 190 197 The antenna modulemay transmit or receive a signal or power to or from the outside (e.g., the external electronic device). According to an embodiment, the antenna modulemay include one antenna including a radiator formed of a conductor or conductive pattern formed on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna modulemay include a plurality of antennas (e.g., an antenna array). In this case, at least one antenna appropriate for a communication scheme used in a communication network, such as the first networkor the second network, may be selected from the plurality of antennas by, e.g., the communication module. The signal or the power may then be transmitted or received between the communication moduleand the external electronic device via the selected at least one antenna. According to an embodiment, other parts (e.g., radio frequency integrated circuit (RFIC)) than the radiator may be further formed as part of the antenna module.

197 According to various embodiments, the antenna modulemay form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, a RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band.

At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)).

101 104 108 199 102 104 101 101 102 104 108 101 101 101 101 101 104 108 104 108 199 101 According to an embodiment, commands or data may be transmitted or received between the electronic deviceand the external electronic devicevia the servercoupled with the second network. The external electronic devicesoreach may be a device of the same or a different type from the electronic device. According to an embodiment, all or some of operations to be executed at the electronic devicemay be executed at one or more of the external electronic devices,, or. For example, if the electronic deviceshould perform a function or a service automatically, or in response to a request from a user or another device, the electronic device, instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device. The electronic devicemay provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic devicemay provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In another embodiment, the external electronic devicemay include an Internet-of-things (IoT) device. The servermay be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic deviceor the servermay be included in the second network. The electronic devicemay be applied to intelligent services (e.g., smart home, smart city, smart car, or health-care) based on 5G communication technology or IoT-related technology.

In the disclosure, the term “module” of the components may be replaced with the term “circuit”.

2 FIG. 3 FIG. is a view illustrating a wireless power transmission device and a wireless power reception device according to an embodiment of the disclosure.is a view illustrating a structure of a wireless power transmission device according to an embodiment of the disclosure.

2 3 FIGS.and 1 FIG. 1 FIG. 201 102 203 101 201 101 201 201 320 320 201 201 201 201 203 203 Referring to, a wireless power transmission device(e.g., the electronic deviceof) according to an embodiment may wirelessly transmit power to a wireless power reception device(e.g., the electronic deviceof). The wireless power transmission devicemay receive information from the electronic device. For example, the wireless power transmission devicemay transmit power in an induction scheme. Adopting the induction scheme, the wireless power transmission devicemay include at least one of, e.g., a power source, a DC-DC conversion circuit (e.g., DC/DC converter), DC-AC conversion circuit (e.g., inverter), an amplifying circuit, an impedance matching circuit, at least one capacitor, at least one coil, or a communication modulation circuit. The at least one capacitor together with the at least one coilmay constitute a resonance circuit. The wireless power transmission devicemay implement at least part of the schemes defined in the wireless power consortium (WPC) Qi standard. The wireless power transmission devicemay include a coil that is capable of produce a magnetic field when letting an electric current flow thereacross by an induction scheme. The process of the wireless power transmission deviceproducing an induced magnetic field may be represented as the wireless power transmission devicewirelessly transmitting power. Further, an induced electromotive force (or current, voltage, and/or power) may be generated by the magnetic field generated around the coil of the wireless power reception deviceaccording to a resonance scheme or an induction scheme. The process of producing an induced electromotive force through the coil may be represented as the electronic devicewirelessly receiving power.

201 203 201 203 201 203 201 203 The wireless power transmission deviceaccording to an embodiment may communicate with the electronic device. For example, the wireless power transmitting devicemay communicate with the wireless power reception deviceaccording to an in-band scheme. The wireless power transmitting devicemay modulate data to be transmitted according to, e.g., a frequency shift keying (FSK) modulation scheme, and the electronic devicemay perform modulation according to an amplitude shift keying (ASK) modulation scheme, thereby providing information. The wireless power transmitting devicemay identify the information provided by the wireless power reception devicebased on the amplitude of the current and/or voltage applied to the transmission coil.

201 203 201 203 201 203 201 203 201 203 In the disclosure, that the wireless power transmitting deviceor the wireless power reception deviceperforms a specific operation may mean that various pieces of hardware included in the wireless power transmitting deviceor the wireless power reception device, e.g., a controller (e.g., a micro-controlling unit (MCU), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a microprocessor, or an application processor (AP)) performs the specific operation. Or, that the wireless power transmitting deviceor the wireless power reception deviceperforms a specific operation may also mean that the connector controls another hardware device to perform the specific operation. That the wireless power transmitting deviceor the wireless power reception deviceperforms a specific operation may mean that the controller (e.g., a processor) or another hardware device triggers the specific operation as an instruction for performing the specific operation, which is stored in a storage circuit (e.g., memory) of the wireless power transmitting deviceor the wireless power reception device, is executed.

201 203 In the disclosure, the wireless power transmission devicemay perform a ping, identification and configuration, negotiation for FOD determination, and power transfer phase to transmit power to the wireless power reception deviceaccording to the scheme defined in the Qi standard of the wireless power consortium (WPC).

4 4 4 FIGS.A,B, andC are views illustrating a structure of an electronic device which is a wireless power reception device according to various embodiments of the disclosure.

4 4 4 FIGS.A,B, andC 1 FIG. 203 210 220 203 410 430 420 440 450 203 460 203 460 Referring to, an electronic deviceaccording to an embodiment may include a first housing, a second housing, and a connection member (e.g., a hinge member). The electronic deviceaccording to an embodiment may include a processor, a battery, a coil, memory, and a light output circuit. The electronic deviceaccording to an embodiment may further include a displayand/or a communication circuit (not shown). Without limitations thereto, the electronic devicemay not include the displayand/or the communication circuit (not shown), or may further include other components described in.

203 205 205 203 230 a b The electronic deviceaccording to an embodiment may be, e.g., a cradle device configured in the form of a case capable of storing the external electronic devicesand, and a foldable or flip-type electronic device in which a portion of the housing is folded. In the disclosure, it will be understood that the electronic devicemay be equally applied to all types of devices for charging, including a connection member(e.g., a hinge member) formed of metal (e.g., a metal component) disposed in the folded portion of the housing.

203 201 201 203 205 205 205 205 210 205 205 a b a b a b. The electronic deviceaccording to an embodiment may be connected to a wireless transmission power devicethat supplies external power to receive power supplied from the wireless transmission power deviceto charge the battery. The electronic deviceaccording to an embodiment may be wirelessly or wiredly connected to the external electronic devicesandbased on the mounting of the external electronic devicesandin the inner accommodation space of the first housing, and may apply power for charging to the external electronic devicesand

220 210 210 230 230 210 220 230 4 4 FIGS.A andB 4 FIG.A 4 FIG.B According to an embodiment, the second housingmay be configured to be disposed on the first housingto be connected to a portion of the first housingthrough the connection memberto be opened or closed. According to an embodiment, as shown in, the connection membermay rotatably connect the first housingand the second housingwith respect to the X axis (e.g., +axis and −axis), and may be formed of metal (e.g., a metal component). Here, as shown in, the connection membermay be disposed in the +y-axis direction (e.g., the rear surface as shown in).

210 220 203 460 220 460 According to an embodiment, various electronic components may be disposed inside the first housingand/or the second housing. According to an embodiment, the first external electronic devicemay include a displayin an area exposed to the outside of the second housing, and may display charging status information (e.g., information indicating start battery charging, charging, or stop charging) through the display.

203 220 210 210 220 210 According to an embodiment, the electronic devicemay have an open state a and a shielded state b. The open state may refer to a state in which the second housingdoes not shield the first housingand the upper portion (e.g., +z-axis direction) of the first housingis open. The shielded state may refer to a state in which the second housingshields the first housing. In the following description, the disclosure is described using the terms ‘open state’ and ‘shielded state’.

420 203 230 210 According to an embodiment, the coilof the electronic devicemay be disposed adjacent to a connection memberin a portion of the first housing.

420 203 320 201 420 203 320 201 According to an embodiment, if the size of the coilof the electronic deviceis small as compared with the size (e.g., 44 mm) of the coilof the wireless power transmission device, charging may not properly be performed or efficiency may be lowered, generating lots of heat during charging. Thus, the size of the coilof the electronic devicemay be implemented to be a size similar to the size (e.g., 44 mm) of the coilof the wireless power transmission deviceto increase the coupling coefficient to increase charging efficiency.

5 FIG. is a view illustrating a wireless power transmission device and a wireless power reception device according to an embodiment of the disclosure.

201 511 518 1 2 3 4 512 513 320 514 515 517 511 517 511 201 511 517 517 518 517 518 517 2 3 FIGS.and According to an embodiment, the wireless power transmitting devicemay include a power source, an inverterincluding a plurality of switches Q, Q, Q, and Q, a capacitor, a transmission coil(e.g., the coilof), a demodulation circuit, a controller(e.g., a processor), and a DC/DC converter. According to an embodiment, the power provided by the power sourcemay be provided to the DC/DC converter. The power sourcemay include at least one of an interface for connection with an external travel adapter (TA), a battery (not shown) of the wireless power transmitting device, a charger (not shown), or a power management integrated circuit (PMIC) (not shown). The power sourcemay provide, e.g., DC power to the DC/DC converter, but the type of power provided is not limited. The DC/DC convertermay convert the voltage of the received power and apply it to the inverter. The DC/DC convertermay change the voltage of the applied DC power and provide the DC power having the changed voltage (or driving voltage VDD) to the inverter. The DC/DC convertermay perform, e.g., buck conversion and/or boost conversion and may be implemented as, e.g., a 3-level converter, but it will be appreciated by one of ordinary skill in the art that it is not limited in type.

518 517 1 2 3 4 513 1 2 512 513 3 4 1 2 3 4 515 2 4 1 3 2 4 1 3 515 1 2 3 4 1 2 3 4 515 515 518 515 1 3 1 3 2 4 2 4 515 518 515 1 3 1 3 2 4 2 4 517 518 515 517 518 513 According to an embodiment, the invertermay output AC power using the driving voltage VDD received from the DC/DC converter. The plurality of switches Q, Q, Q, and Qmay constitute, e.g., a full bridge circuit, but the number of switches or the type of bridge circuit is not limited. For example, when a full bridge circuit is configured, one end of the transmission coilmay be connected to a connection point between the switches Qand Qthrough the capacitor, and the other end of the transmission coilmay be connected to the connection point between the switches Qand Q. The plurality of switches Q, Q, Q, and Qmay be controlled to have an on state or an off state. For example, to generate AC power, the controllermay control the second switch Qand the fourth switch Qin the off state while controlling the first switch Qand the third switch Qin the on state during a first period and may control the second switch Qand the fourth switch Qin the on state while controlling the first switch Qand the third switch Qin the off state during a second period and may repeatedly perform the above-described control operations. The controllermay provide the control signals Q_DRV, Q_DRV, Q_DRV, and Q_DRV for generating AC power described above to the plurality of switches Q, Q, Q, and Q. Here, not only outputting the control signal but also refraining from outputting the control signal may be referred to as control of the controller. For example, that the controlleroutputs the first control signal for generation of AC power having a first frequency to the invertermay mean that the controllermay output the control signals Q_DRV and Q_DRV for controlling the switches Qand Qin the on state during the first period corresponding to the first frequency and then output the control signals Q_DRV and Q_DRV for controlling the switches Qand Qin the on state during the second period corresponding to the first frequency, and repeat the above-described output operations. Meanwhile, that the controlleroutputs the second control signal for generation of AC power having a second frequency to the invertermay mean that the controllermay output the control signals Q_DRV and Q_DRV for controlling the switches Qand Qin the on state during the first period corresponding to the second frequency and then output the control signals Q_DRV and Q_DRV for controlling the switches Qand Qin the on state during the second period corresponding to the second frequency, and repeat the above-described output operations. In this case, the first period and the second period corresponding to the second frequency may differ from the first period and the second period corresponding to the first frequency. At least one of the DC/DC converteror the invertermay be referred to as a power providing circuit. The controllermay control the power providing circuit (e.g., at least one of the DC/DC converteror inverter) so that power is applied to the transmission coil.

518 513 512 513 513 513 521 203 521 521 According to an embodiment, the AC power generated by the invertermay be applied to the transmission coil. The capacitortogether with the transmission coilmay form a resonant circuit. The transmission coilmay form a magnetic field based on the applied AC power. Part of the magnetic field (or magnetic flux) formed by the transmission coilmay pass through the cross section of the reception coilof the electronic devicewhich is the wireless power reception device. As the magnetic field passing through the cross section of the reception coilis changed over time, an induced electromotive force (e.g., current, voltage, or power) may be generated around the reception coil.

514 513 519 513 514 513 519 514 203 201 513 201 203 519 513 514 514 514 519 513 519 513 203 515 203 514 515 515 203 514 515 514 515 According to an embodiment, the demodulation circuitmay demodulate the signal applied to the transmission coil(e.g., the voltageapplied to both ends of the transmission coil) and output a demodulation signal Vdemod. The demodulation circuitmay output the demodulation signal Vdemod by down-converting the signal applied to the transmission coil(e.g., the voltagebetween both the ends) by the frequency (e.g., 100 kHz to 210 kHz) of the AC power. For example, the demodulation circuitmay include a mixer and/or a multiplier circuit for removing the carrier wave component (e.g., 100 kHz to 210 kHz which is the frequency of the AC power) for wireless power transmission. Here, since the mixed waveform of the component by the modulation of the electronic deviceand the AC power component by the wireless power transmitting devicemay be applied to both the ends of the coilof the wireless power transmitting device, the frequency component (e.g., 100 kHz to 210 kHz) of the AC power is named the carrier wave component, but it will be appreciated by one of ordinary skill in the art that the electronic devicedoes not actually generate the electromagnetic wave which is the mixture of the carrier wave and the modulated data. Thus, the carrier wave component (e.g., the frequency of AC power, 100 kHz to 210 kHz) may be removed from the voltagebetween both the ends of the transmission coil. The demodulation circuitmay additionally filter (low pass filter) the demodulation signal Vdemod and output it. The demodulation circuitmay include a low pass filter. Or, the demodulation circuitmay filter the voltagebetween both the ends of the transmission coiland then down-convert it by the frequency (e.g., 100 kHz to 210 kHz) of AC power, thereby generating the demodulation signal Vdemod. The amplitude of the voltagebetween both the ends of the transmission coilmay be changed according to the ASK demodulation of the electronic device. According to an embodiment, the controllermay identify the information provided from the electronic device, based on the demodulation signal Vdemod output by the demodulation circuit. The controllermay perform, e.g., analog-to-digital conversion (ADC) on the demodulation signal Vdemod. The controllermay decode the digital value obtained as a result of the ADC and identify the information provided by the electronic deviceaccording to the result of decoding. It will be understood by those skilled in the art that the decoding method may be based on, e.g., the Qi standard, but is not limited thereto. Meanwhile, in the above-described embodiment, the demodulation circuitperforms frequency down-conversion (e.g., carrier wave removal) and/or low-pass filtering, and the controllerperforms ADC and/or decoding, but this is merely an example. It will be appreciated by one of ordinary skill in the art that the demodulation circuitmay be implemented to further perform at least one of ADC or decoding, and the controllermay be implemented to further perform frequency down-conversion (e.g., carrier wave removal) and/or low-pass filtering.

203 521 420 522 523 555 550 120 410 561 562 563 564 531 532 533 534 541 542 543 544 4 4 FIGS.B andC 1 FIG. 4 FIG.C According to an embodiment, the electronic devicewhich is a wireless power reception device may include at least one of a reception coil(e.g., the coilof), a capacitor, a capacitor, a rectification circuit, a controller(e.g., the processorofor the processorof), a plurality of capacitors,,, and, a plurality of switches,,, and, a capacitor, a regulator, a capacitor, or a charger.

521 522 523 522 521 522 523 555 523 522 523 521 523 521 522 523 555 According to an embodiment, the reception coil, the capacitor, and the capacitormay constitute a resonance circuit. One end of the capacitormay be connected to the reception coil, and the other end of the capacitormay be connected to one end of the capacitorand one end of the rectification circuit. One end of the capacitormay be connected to the other end of the capacitor, and the other end of the capacitormay be connected to the other end of the reception coil. In other words, the capacitormay be connected in parallel to a circuit formed by connecting the reception coiland the capacitorin series. The other end of the capacitormay be connected to the other end of the rectification circuit.

555 1 2 3 4 1 2 3 4 555 521 550 1 2 3 4 According to an embodiment, the rectification circuitmay include a plurality of switches S, S, S, and Sconstituting the full bridge circuit. One end of the resonance circuit may be connected to a connection point between the switches Sand S, and the other end of the resonance circuit may be connected to the connection point between the switches Sand S. The rectification circuitmay convert the AC power, received through the reception coil, into DC power. The controllermay control the on/off states of the plurality of switches S, S, S, and Sto convert AC power into DC power.

541 542 555 541 542 According to an embodiment, the capacitorand the regulatormay be connected to the rectification circuit. One end of the capacitormay be grounded. The regulatormay perform converting (e.g., buck converting and/or boost converting) and/or regulating on the voltage of the rectified power output from the power conversion circuit.

544 430 542 544 244 542 4 4 FIGS.B andC According to an embodiment, the chargermay charge a battery (e.g., the batteryof) with the power converted and/or regulated by the regulator. According to an embodiment, the chargermay control the voltage and/or current for charging the battery according to a battery charging mode (e.g., constant current (CC) mode, constant voltage (CV) mode, or quick charging mode). According to the implementation, a PMIC (not shown) in place of the chargermay be coupled to the regulator.

550 550 561 562 563 564 519 201 519 201 519 531 519 531 561 562 563 564 532 533 534 519 201 519 531 532 519 531 532 561 562 563 564 533 534 203 561 562 563 564 550 1 2 1 2 562 561 564 563 According to an embodiment, the controllermay perform modulation in response to information to be provided. The controllermay determine a capacitor to be modulated from among the plurality of capacitors,,, and. The difference in amplitude of the voltagesensed by the wireless power transmitting devicemay be changed according to the capacitor to be modulated. For example, it is assumed that the difference in the amplitude of the voltagesensed in the wireless power transmitting device(e.g., the difference between the maximum amplitude of the voltagewhile the switchis in the on state and the maximum amplitude of the voltagewhile the switchis in the off state) when modulation is performed with only one capacitoris a first value. In this case, since the capacitors,, andare not used for modulation, the switches,, andmay remain off. Meanwhile, the difference in the amplitude of the voltagesensed in the wireless power transmitting device(e.g., the difference between the maximum amplitude of the voltagewhile the switchesandare in the on state and the maximum amplitude of the voltagewhile the switchesandare in the off state) when modulation is performed with the capacitorand the capacitoris a second value which may be larger than the first value. In this case, since the capacitorsandare not used for modulation, the switchesandmay remain off. The electronic devicemay adjust the modulation degree (or modulation depth) as the capacitor to be modulated among the plurality of capacitors,,, andis adjusted. As described above, the controllermay output and/or refrain from outputting at least some of the control signals CMA, CMA, CMB, and CMBto maintain the off state of the switch corresponding to the capacitor, not determined, while performing modulation using the determined capacitor. Meanwhile, for example, the capacitance of the capacitormay be smaller than the capacitance of the capacitor, and the capacitance of the capacitormay be smaller than the capacitance of the capacitor, but this is merely an example, and the size relationship in capacitance is not limited thereto, and the capacitances may be identical.

515 201 203 3 FIG. 3 FIG. The controllerdescribed above inmay be referred to as a processor and may be a micro controlling unit (MCU), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), at least one processor, or an application processor (AP). The wireless power transmission deviceand the electronic devicewhich is a wireless power reception device are not limited to the configurations described above in, and may further include other components required for wireless charging.

6 FIG. is a view illustrating an example of a ping step for wireless charging according to an embodiment of the disclosure.

2 3 4 4 4 5 6 FIGS.,,A,B,C,, and 201 203 515 201 310 201 513 517 518 Referring to, the wireless power transmission deviceaccording to an embodiment may perform a ping phase to identify that an external object (e.g., the electronic device) is placed (e.g., disposed or attached) on or removed (e.g., detached) from the charging area by the controller, and determine whether a foreign object is present (e.g., distinguish between an object capable of wireless power reception and a foreign object). Here, the charging area of the wireless power transmission devicemay be configured in a portion of the housingof the wireless power transmission device(e.g., a surface opposite to the surface placed on the floor, or an upper surface). The ping phase may be an operation of outputting (e.g., applying first power) a first ping signal to the transmission coilfor a designated time (e.g., a first ping cycle) when the first current value output from the converteris applied to the inverter.

201 518 610 513 513 203 201 513 215 The wireless power transmission deviceaccording to an embodiment may control the inverterincluded in the power providing circuit to output (e.g., apply the first power) the first ping signalto the transmission coilwhile performing the ping phase at the designated first ping cycle (e.g., 170 ms). Here, the first power may be the power of a first frequency transmitted through the transmission coilto identify whether an external object (e.g., the electronic device) is identified (e.g., present, detected, or confirmed) on the charging area in the ping phase. The wireless power transmission deviceaccording to an embodiment may detect information (e.g., first information) related to the ping phase while performing the ping phase (e.g., applying the first power) to the transmission coil. Here, the information related to the ping phase may include at least one of a quality (Q) factor value, a resonance frequency, or an L/R value detected while performing the ping phase. The controlleraccording to an embodiment may identify that an external object is placed in the charging area based on the obtained information related to the ping phase and reference information.

201 610 203 203 203 610 203 610 201 203 203 201 According to an embodiment, the wireless power transmission devicemay transmit the first ping signalhaving a first current value to the electronic deviceat the first ping cycle (e.g., 170 ms), used to identify the approach of the electronic devicewhile performing the ping phase in a power hold mode (PHM). According to an embodiment, if the electronic devicewhich is a wireless power reception device receives the first ping signal, the electronic devicemay transmit a response signal to the first ping signalto the wireless power transmission device. According to an embodiment, the electronic devicemay identify the power hold mode (PHM) based on a predesignated condition. The electronic devicemay share information about entry and release of the power hold mode with the wireless power transmission device.

201 610 203 203 201 201 201 620 620 203 230 430 203 201 203 201 203 201 203 201 203 203 203 201 According to an embodiment, if the wireless power transmission devicereceives a response to the first ping signalfrom the electronic devicewhile performing the ping operation, the electronic devicemay be identified as a device (e.g., an object) that is disposed within a designated distance from the wireless power transmission deviceand may actually receive wireless power. According to an embodiment, the wireless power transmission devicemay enter a safety ping mode from the power hold mode (PHM) and change the first ping cycle (e.g., 170 ms) to a second ping cycle (e.g., 2 s). According to an embodiment, the wireless power transmission devicemay transmit a second ping signalhaving a current value equal to or larger than a reference value. The second ping signalhas a second current value equal to or larger than a reference value (e.g., a P-FOD entry value), and may be transmitted to the electronic deviceat the second ping cycle. The second ping cycle may be set to be longer than the first ping cycle to reduce heat generation by the hinge memberwhile charging the batteryof the electronic device. The second ping cycle may be set in the wireless power transmission device, e.g., when the product is produced or initialized, shared with the electronic device, or set in each of the wireless power transmission deviceand the electronic devicewhen the product is produced or initialized. The first ping cycle may be set in the wireless power transmission device, e.g., when the product is produced or initialized, shared with the electronic device, or set in each of the wireless power transmission deviceand the electronic devicewhen the product is produced or initialized. According to an embodiment, if the electronic devicewhich is a wireless power reception device receives the second ping signal, the electronic devicemay transmit a response signal to the second ping signal to the wireless power transmission device.

201 203 201 203 According to an embodiment, the wireless power transmission devicemay perform at least one operation corresponding to an identification phase & configuration phase with the electronic device, and the corresponding operation may follow, e.g., the Qi standard, but is not limited. After performing the configuration phase, the wireless power transmission devicemay perform a negotiation phase and a power transfer phase of transmitting power for charging the battery to the electronic device.

2 3 4 4 5 6 FIGS.,,A toC,, and 203 410 203 201 203 430 201 420 203 410 430 203 610 201 203 610 201 Referring back to, if the electronic deviceaccording to an embodiment performs the ping phase by the processorto identify that the electronic deviceis disposed within a designated distance from the wireless power transmission device, the electronic devicemay identify receiving power for wirelessly charging the batteryfrom the wireless power transmission devicethrough the coil. The electronic deviceaccording to an embodiment may identify whether it enters the power hold mode (PHM) by the processorwhile charging the battery. If entering the power hold mode, the electronic devicemay operate in the power hold mode and, if receiving the first ping signalfrom the wireless power transmission devicethrough the ping phase in the power hold mode, the electronic devicemay transmit a response message to the first ping signalto the wireless power transmission device.

410 203 620 201 201 203 201 430 410 203 450 430 201 430 410 203 460 430 According to an embodiment, if the processorof the electronic devicereceives the second ping signalhaving the second cycle and the second current value from the wireless power transmission devicewhile in the power hold mode (PHM), it may identify that the first ping cycle has been changed to the second ping cycle by the wireless power transmission device. The electronic devicemay wirelessly receive power from the wireless power transmission deviceand maintain the state of charging the battery. According to an embodiment, the processorof the electronic devicemay control the light output circuitto output light of a first color (e.g., green light) indicating the state of charging the batterybased on wirelessly receiving power from the wireless power transmission devicewithout stopping the battery charging and maintaining the state of charging the battery. According to an embodiment, the processorof the electronic devicemay control the displayto display information (e.g., a text or graphic object) indicating the state of charging the battery.

410 203 410 430 450 430 410 203 460 430 According to an embodiment, if the processorof the electronic deviceidentifies that none of another first ping signal and the second ping signal are received for a designated time (e.g., 2.2 seconds) after receiving the first ping signal, the processormay stop the charging of the batteryand control the light output circuitto output light of a second color (e.g., red light) indicating that the charging of the batteryis stopped. According to an embodiment, the processorof the electronic devicemay control the displayto display information (e.g., a text or graphic object) indicating that charging of the batteryis stopped.

440 440 140 440 120 410 1 FIG. 1 FIG. 4 FIG.C According to an embodiment, the memoryof the electronic device may store commands (e.g., instructions) for implementing the software module. The memoryaccording to an embodiment may store information related to wireless charging and may store various data generated while executing the program as well as the program (e.g., software or the programof) related to wireless charging. The memoryaccording to an embodiment may store commands (or instructions) enabling at least one processor (e.g., the processorofor the processorof) to perform wireless charging.

144 146 108 108 102 104 1 FIG. 1 FIG. 2 FIG. According to an embodiment, the software module of the electronic device may include a kernel (or HAL), a framework (e.g., the middlewareof) and an application (e.g., the applicationofor the message application of). At least part of the program module may be preloaded on the electronic device or may be downloaded from a server (e.g., the server). The application may include an application received from an external electronic device (e.g., the serveror the electronic devicesand). According to an embodiment, the application may include a preloaded application or a third party application downloadable from a server. The components of the software module and the names of the components according to the illustrated embodiment may be varied depending on the type of the operating system. According to an embodiment, at least a part of the software module may be implemented in software, firmware, hardware, or in a combination of two or more thereof. At least part of the software module may be implemented (e.g., executed) by e.g., a processor (e.g., an AP). At least a part of the software module may include at least one of, e.g., a module, program, routine, set of instructions, process, or the like for performing at least function.

450 210 220 430 450 430 450 430 The light output circuitaccording to an embodiment may be disposed on a portion of the first housingor a portion of the second housing, and may include a light emitting diode (LED) that generates light. According to an embodiment, if the charging of the batteryis maintained, the light output circuitmay output light of the first color (e.g., green light) indicating that the battery is being charged. According to an embodiment, if the charging of the batteryis stopped, the light output circuitmay output light of the second color (e.g., red light) indicating that the charging of the batteryis stopped.

460 160 210 410 430 460 430 460 430 1 FIG. The display(e.g., the displayof) according to an embodiment may be included in a portion of the second housing, and may display various information related to wireless charging based on the control of at least one processor. According to an embodiment, if the charging of the batteryis maintained, the displaymay output information (e.g., a text or graphic object) indicating that the battery is being charged. According to an embodiment, if the charging of the batteryis stopped, the displaymay output information (e.g., a text or graphic object) indicating that the charging of the batteryis stopped.

203 205 205 203 430 430 a b The electronic deviceaccording to an embodiment may further include a communication circuit, and the communication circuit may perform wireless communication with an external electronic device (e.g., the external electronic devicesandor other external electronic devices) seated on the electronic deviceand transmit various information related to wireless charging. For example, if the charging of the batteryis maintained, the communication circuit may transmit information indicating that the battery is being charged (e.g., a text or graphic object) to an external electronic device. For example, if the charging of the batteryis stopped, the communication circuit may transmit information (e.g., a text or graphic object) indicating that the charging of the battery is stopped.

101 203 101 203 101 203 1 4 4 4 5 FIGS.,A,B,C, and 1 4 4 4 5 FIGS.,A,B,C, and 1 4 4 4 5 FIGS.,A,B,C, and As described above, in an embodiment, major components of the electronic device have been described through the electronic devicesandof. In various embodiments, however, all of the components ofare not essential components, and the electronic deviceormay be implemented with more or less components than those shown. The positions of the major components of the electronic deviceordescribed above in connection withmay be varied according to various embodiments.

101 203 210 220 230 420 521 430 120 410 130 440 1 FIG. 2 4 4 4 5 FIGS.,A,B,C, and 2 4 FIGS.andA 2 4 FIGS.andA 2 4 FIGS.andA 4 4 FIGS.B andC 5 FIG. 4 4 FIGS.B andC 1 FIG. 4 FIG.C 1 FIG. 4 FIG.C According to an embodiment, an electronic device (e.g., the electronic deviceofor the electronic deviceof) may comprise a first housing (e.g., the first housingof), a second housing (e.g., the second housingof) rotatably connected to a portion of the first housing to be opened or closed, a hinge member (e.g., the hinge memberof) rotatably connecting the first housing and the second housing and including a metal material, a coil (e.g., the coilofand the coilof) disposed adjacent to the hinge member in the first housing, a battery (e.g., the batteryof) disposed in the first housing, at least one processor (e.g., the processorofor the processorof), and memory (e.g., the memoryofor the memoryof) storing instructions.

201 2 3 5 FIGS.,, and According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device (e.g., the wireless power transmission deviceof) using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receive power for wirelessly charging the battery through the coil from the wireless power transmission device.

According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to identify entry into a power hold mode (PHM) while receiving the power.

According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to, based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identify that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintain a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery.

According to an embodiment, the second current value of the second ping signal may be greater or equal to a reference value.

According to an embodiment, the second ping cycle may be longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

450 4 FIG.C According to an embodiment, the electronic device may further comprise a light output circuit (e.g., the light output circuitof). According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to, based on maintaining the state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, output, through the light output circuit, light of a first color indicating the state of charging the battery.

According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to, based on identifying that the first ping signal and the second ping signal are not received for a designated time, stop the charging of the battery and output, through the light output circuit, light of a second color indicating that the charging of the battery has stopped. According to an embodiment, the designated time may be pre-designated based on the second ping cycle.

According to an embodiment, the second ping cycle may be set by the wireless power transmission device when the wireless power transmission device enters a safe ping mode.

460 4 FIG.C According to an embodiment, the electronic device may further comprise a display (e.g., the displayof).

According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to display, on the display, information indicating the state of charging the battery.

According to an embodiment, the second ping cycle may be shorted than the designated time.

According to an embodiment, the instructions may, when executed by the at least one processor individually or collectively, enable the electronic device to, based on identifying that the first ping signal and the second ping signal are not received for a designated time, stop the charging of the battery and output, through the display, information indicating that the charging of the battery has stopped.

7 FIG. is a view illustrating an example of an operation method in an electronic device according to an embodiment of the disclosure. In the following embodiments, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

7 FIG. 1 FIG. 2 4 4 4 5 FIGS.,A,B,C, and 4 4 FIGS.B andC 4 4 FIGS.B andC 5 FIG. 2 3 FIGS.and 2 3 5 FIGS.,, and 2 4 4 FIGS.,A, andB 2 4 FIGS.,B 2 4 FIGS.,A 701 101 203 430 420 521 201 201 210 230 4 220 4 Referring to, in operation, an electronic device (e.g., the electronic deviceofor the electronic deviceof) according to an embodiment may receive power for wirelessly charging a battery (e.g., the batteryof) through a coil (e.g., the coilofor the coilof) from a wireless power transmission device (e.g., the wireless power transmission deviceof) based on identifying that the electronic device is disposed within a designated distance from the wireless power transmission device (e.g., the wireless power transmission deviceof) using a first ping signal. The first ping signal is received from the wireless power transmission device and has a first period and a first current value. The coil of the electronic device may be disposed in a first housing (e.g., the first housingof), adjacent to a hinge member (e.g., the hinge memberof, andC) including a metal material rotatably connecting the first housing of the electronic device and a second housing (e.g., the second housingof, andB) of the electronic device.

703 In operation, the electronic device may identify entry into a power hold mode (PHM) while receiving the power. If the electronic device receives the first ping signal at a first ping cycle (e.g., 170 ms) from the wireless power transmission device while in the power hold mode, the electronic device may transmit a response signal to the received first ping signal to the wireless power transmission device.

705 707 709 705 In operation, the electronic device may identify whether it receives a second ping signal having a second cycle and a second current value within a designated time from the wireless power transmission device while in the power hold mode. As a result of the identification, if the electronic device receives the second ping signal, the electronic device may perform operation. As a result of the identification, if the electronic device does not receive the second ping signal, the electronic device may perform operation. Here, the second current value of the second ping signal may be larger than or equal to a reference value (e.g., a P-FOD entry value). The second ping cycle may be set to be longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device, and may be set by the wireless power transmission device when the wireless power transmission device enters the safety ping mode. In operation, the electronic device may identify whether the first ping signal is not received within the first ping cycle after receiving the first ping signal at the first ping cycle, and whether the second ping signal is received within the designated time.

707 In operation, the electronic device may identify that the first ping cycle is changed to the second ping cycle by the wireless power transmission device based on identifying that the second ping signal is received from the wireless power transmission device within the designated time while in the power hold mode, and may perform an operation of maintaining the state of charging the battery without stopping battery charging. The electronic device may output light of a first color indicating the state of charging the battery through the light output circuit of the electronic device. According to an embodiment, the electronic device may display information (e.g., a text or graphic object) indicating the state of charging the battery through the display. The electronic device may transmit a response signal to the received second ping signal based on identifying that the second ping signal is received within the designated time from the wireless power transmission device while in the power hold mode.

709 709 In operation, the electronic device may perform an operation of stopping the charging of the battery based on identifying that the second ping signal is not received within the designated time from the wireless power transmission device while in the power hold mode. The electronic device may output light of the second color, indicating that the charging of the battery is stopped, through the light output circuit of the electronic device. According to an embodiment, the electronic device may display information (e.g., a text or graphic object) indicating that the charging of the battery is stopped through the display. In operation, the electronic device may identify that the first ping signal is not received within the first ping cycle and the second ping signal is not received within the designated time after receiving the first ping signal at the first ping cycle. As the electronic device identifies that neither the first ping signal nor the second ping signal is received within the designated time, the electronic device may identify the electronic device as being detached from the wireless power transmission device, and may stop charging the battery.

According to an embodiment, if the second ping signal is received at the second ping cycle, but another first ping signal and another second ping signal are not received thereafter, the electronic device may identify that it is detached from the wireless power transmission device, and stop charging the battery.

203 205 205 7 FIG. 4 FIG.A 7 FIG. a b An example in which the electronic devicein the operation method described above inis a cradle device configured in the form of a case capable of storing an external electronic device (e.g., the external electronic devicesandof) has been described above, but the operation method described above inmay also be applied to foldable or flip-type electronic devices in which a portion of the housing is folded.

8 FIG. 4 FIG.B 8 FIG. 203 230 is a view illustrating an effect according to wireless charging in an electronic device according to an embodiment of the disclosure. Here, as shown in,shows the rear surface of the electronic device, and is a view of comparing temperature changes before and after enhancement for wireless charging heat generation of the connection member (e.g., a hinge member).

8 FIG. 8 FIG. 8 FIG. 203 203 811 810 230 203 813 230 810 230 203 811 813 203 Referring to, when the ping current is high, the wireless power transmission device according to an embodiment may change the ping cycle from the first ping cycle (e.g., 170 ms) to the second ping cycle (e.g., 2,000 ms) so that the electronic devicewhich is a wireless power reception device may identify the change to the second ping cycle, and the electronic devicemay maintain the battery charging to prevent disconnection of charging, thereby enhancing wireless charging heat generation. As illustrated in, the disclosure may compare the temperature changes before and after enhancement of wireless charging heat generation by comparing the maximum temperature(e.g., 42.5 degrees C.) measured at a portion(e.g., the measurement position) of the connection member(e.g., a hinge member including a metal material) of the electronic deviceat the first ping cycle (e.g., 170 ms) and the maximum temperature(e.g., 35 degrees C.) measured at a portion of the connection memberat the second ping cycle (e.g., 2,000 ms). As illustrated in, as the ping cycle is changed to the second ping cycle (e.g., 2,000 ms) which is longer than the first ping cycle (e.g., 170 ms), the temperature of the portionof the connection memberof the electronic deviceis lowered from the temperature (e.g., the maximum temperature) (e.g., 42.5 degrees C. before enhancement of the first ping cycle (e.g., 170 ms) to the temperature (e.g., the maximum temperature) (e.g., 35 degrees C.) after enhancement of the second ping cycle (e.g., 2,000 ms), and thus, the disclosure may enhance wireless charging heat generation. Since the electronic devicewhich is a wireless power reception device according to the disclosure requires determination as to whether it is detached from the wireless power transmission device so that a ping is not received or the ping cycle is prolonged in the safety ping mode, it is possible to enhance wireless charging heat generation by preventing disconnection of charging by setting the cycle of the safety ping mode to the time (e.g., 2,000 ms) of maintaining the LED.

101 203 201 430 420 230 210 220 1 FIG. 2 4 4 4 5 FIGS.,A,B,C, and 2 3 5 FIGS.,, and 4 4 FIGS.B andC 4 4 FIGS.B andC 2 4 FIGS.andA 2 4 FIGS.andA 2 4 FIGS.andA According to an embodiment, a method of an operation in an electronic device (e.g., the electronic deviceofor the electronic deviceof) may comprise, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device (e.g., the wireless power transmission deviceof) using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receiving power for wirelessly charging a battery (e.g., the batteryof) through a coil (e.g., the coilof) of the electronic device from the wireless power transmission device. According to an embodiment, the coil may be configured to be disposed in a first housing, adjacent to a hinge member (e.g., the hinge memberof) including a metal material rotatably connecting the first housing (e.g., the first housingof) of the electronic device and a second housing (e.g., the second housingof) of the electronic device.

According to an embodiment, the method may comprise identifying entry into a power hold mode (PHM) while receiving the power.

According to an embodiment, the method may comprise, based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identifying that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintaining a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery.

According to an embodiment, the second current value of the second ping signal may be greater or equal to a reference value.

According to an embodiment, the second ping cycle may be longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

450 4 FIG.C According to an embodiment, the method may further comprise, based on maintaining the state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, outputting, through a light output circuit (e.g., the light output circuitof) of the electronic device, light of a first color indicating the state of charging the battery.

According to an embodiment, the method may further comprise, based on identifying that the first ping signal and the second ping signal are not received for a designated time, stopping the charging of the battery and outputting, through the circuit, light of a second color indicating that the charging of the battery has stopped.

According to an embodiment, the designated time may be pre-designated based on the second ping cycle.

According to an embodiment, the second ping cycle may be set by the wireless power transmission device when the wireless power transmission device enters a safe ping mode.

460 4 FIG.C According to an embodiment, the method may further comprise display, on a display (e.g., the displayof) of the electronic device, information indicating the state of charging the battery.

According to an embodiment, the second ping cycle may be shorter than the designated time.

According to an embodiment, the method may further comprise, based on identifying that the first ping signal and the second ping signal are not received for the designated time, stopping the charging of the battery and outputting, through the display, information indicating that the charging of the battery has stopped.

210 230 220 2 4 FIGS.andA 2 4 4 FIGS.,A, andB 2 4 FIGS.andA According to an embodiment, in a non-transitory storage medium storing one or more programs, the one or more programs may include instructions that, when executed by at least one processor of an electronic device, enable the electronic device to, based on identifying that the electronic device is disposed within a designated distance from a wireless power transmission device using a first ping signal received from the wireless power transmission device and having a first cycle and a first current value, receive power for wirelessly charging the battery through a coil of the electronic device from the wireless power transmission device, the coil configured to be disposed in a first housing (e.g., the first housingof), adjacent to a hinge member (e.g., the hinge memberof) including a metal material rotatably connecting the first housing of the electronic device and a second housing (e.g., the second housingof) of the electronic device, identify entry into a power hold mode (PHM) while receiving the power, and based on receiving a second ping signal having a second cycle and a second current value from the wireless power transmission device while in the power hold mode, identify that the first ping cycle is changed to the second ping cycle by the wireless power transmission device and maintain a state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery.

According to an embodiment, the second current value of the second ping signal is a reference value or more, and the second ping cycle may be longer than the first ping cycle to reduce heat generation by the hinge member while charging the battery of the electronic device.

According to an embodiment, the one or more programs may include the instructions that, when executed by the at least one processor of the electronic device, enable the electronic device to, based on maintaining the state of charging the battery by wirelessly receiving the power from the wireless power transmission device without stopping the charging of the battery, output, through a light output circuit of the electronic device, light of a first color indicating the state of charging the battery.

According to an embodiment, the one or more programs may include the instructions that, when executed by the at least one processor of the electronic device, enable the electronic device to: based on identifying that the first ping signal and the second ping signal are not received for a designated time, stop the charging of the battery and output, through the light output circuit, light of a second color indicating that the charging of the battery has stopped.

According to an embodiment, the designated time may be pre-designated based on the second ping cycle.

According to an embodiment, the second ping cycle may be set by the wireless power transmission device when the wireless power transmission device enters a safe ping mode.

According to an embodiment, the one or more programs may include the instructions that, when executed by the at least one processor of the electronic device, enable the electronic device to display, on a display of the electronic device, information indicating the state of charging the battery.

According to an embodiment, the second ping cycle may be shorted than the designated time.

According to an embodiment, the one or more programs may include the instructions that, when executed by the at least one processor of the electronic device, enable the electronic device to, based on identifying that the first ping signal and the second ping signal are not received for the designated time, stop the charging of the battery and output, through the display, information indicating that the charging of the battery has stopped.

The disclosure may mitigate heat generation by a hinge member when performing wireless charging in a power hold mode in an electronic device having the hinge member configured adjacent to a coil. Other various effects may be provided directly or indirectly in the disclosure. Effects obtainable from the disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be apparent to one of ordinary skill in the art from the following description.

The embodiments disclosed herein are proposed for description and understanding of the disclosed technology and does not limit the scope of the disclosure. Accordingly, the scope of the disclosure should be interpreted as including all changes or various embodiments based on the technical spirit of the disclosure.

The electronic device according to various embodiments of the disclosure may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to an embodiment of the disclosure, the electronic devices are not limited to those described above.

It should be appreciated that various embodiments of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. As used herein, each of such phrases as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C,” may include all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd,” or “first” and “second” may be used to simply distinguish a corresponding component from another, and does not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with,” “coupled to,” “connected with,” or “connected to” another element (e.g., a second element), it means that the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element.

As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may interchangeably be used with other terms, for example, “logic,” “logic block,” “part,” or “circuitry”. A module may be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, the module may be implemented in a form of an application-specific integrated circuit (ASIC).

140 136 138 101 120 101 Various embodiments as set forth herein may be implemented as software (e.g., the program) including one or more instructions that are stored in a storage medium (e.g., internal memoryor external memory) that is readable by a machine (e.g., the electronic device). For example, a processor (e.g., the processor) of the machine (e.g., the electronic device) may invoke at least one of the one or more instructions stored in the storage medium, and execute it, with or without using one or more other components under the control of the processor. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions may include a code generated by a complier or a code executable by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Wherein, the term “non-transitory” simply means that the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium.

According to an embodiment, a method according to various embodiments of the disclosure may be included and provided in a computer program product. The computer program products may be traded as commodities between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded) online via an application store (e.g., Play Store™), or between two user devices (e.g., smartphones) directly. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturer's server, a server of the application store, or a relay server.

According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single entity or multiple entities. Some of the plurality of entities may be separately disposed in different components. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to various embodiments, operations performed by the module, the program, or another component may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added.

While the disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.